| Niigata Cancer Center Hospital | Niigata Cancer Center Hospital |
| Niigata University Medical & Dental Hospital | Niigata University Medical & Dental Hospital |
| National Hospital Organization Niigata National Hospital | National Hospital Organization Niigata National Hospital |
| Niigata City General Hospital | Niigata City General Hospital |
| Niigata University | Niigata University |
| Niigata Cancer Center Hospital; Internal Medicine | Niigata Cancer Center Hospital; Internal Medicine |
| Shinrakuen Hospital | Shinrakuen Hospital |
